A String of Length L Is Under Tension,and the Speed $\sqrt { 2 }$

question 114

Multiple Choice

A string of length L is under tension,and the speed of a wave in the string is v.What will be the speed of a wave in the string if the length is increased to 2L but with no change in the mass or tension?

• A)v/2
• B)v/ \(\sqrt { 2 }\)
• C)v \(\sqrt { 2 }\)
• D)2v
• E)4v

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